US20050120685A1 - Centrifugal separator - Google Patents

Centrifugal separator Download PDF

Info

Publication number
US20050120685A1
US20050120685A1 US10/922,156 US92215604A US2005120685A1 US 20050120685 A1 US20050120685 A1 US 20050120685A1 US 92215604 A US92215604 A US 92215604A US 2005120685 A1 US2005120685 A1 US 2005120685A1
Authority
US
United States
Prior art keywords
basket
housing
centrifugal separator
rotor
gas stream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/922,156
Other languages
English (en)
Inventor
Helmuth Fischer
Jan Bolda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Assigned to MANN & HUMMEL GMBH reassignment MANN & HUMMEL GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOLDA, JAN, FISCHER, HELMUTH
Publication of US20050120685A1 publication Critical patent/US20050120685A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/02—Electric motor drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/08—Centrifuges for separating predominantly gaseous mixtures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/06—Fluid drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0422—Separating oil and gas with a centrifuge device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Definitions

  • the present invention relates to a centrifugal separator for separating oil and/or solid particles entrained in a gas stream, particularly for de-oiling crankcase gases of an internal combustion engine.
  • the invention further relates to a method for cleaning a gas stream, particularly a crankcase ventilation gas, in which a gas stream containing oil and/or solid particles is directed through a mixture inlet into a centrifugal separator.
  • WO 01/00969 A1 discloses a ventilation device with a centrifugal oil separator, which is equipped with an inlet for an oil/air mixture, an outlet for the cleaned air and an outlet for the oil.
  • the centrifugal oil separator used in this prior-art ventilation device has a rotor, which is arranged in a stationary housing. Along its circumference the rotor has several layers through which the fluid-containing gas flows. Under the influence of the centrifugal force, the droplets are deposited along these layers and discharged through the oil outlet. To prevent the untreated fluid from bypassing the layers of the rotor and flowing directly to the outlet, a contact seal is provided between the rotor and the housing.
  • the cleaned air exiting from the centrifugal oil separator is typically fed into the intake tract of an internal combustion engine.
  • the cleaned air should therefore contain the least possible amount of oil residues. This makes it possible, on the one hand, to reduce the oil consumption of the internal combustion engine and, on the other hand, to improve the emissions behavior of the internal combustion engine.
  • a particularly high degree of cleanliness of the cleaned air is desirable. This is necessary to avoid damage to the sensitive components and influence on the measured values.
  • Another object of the invention is to provide a centrifugal separator which has a simple construction.
  • a further object of the invention is to provide a centrifugal separator which exhibits a high separation efficiency.
  • An additional object of the invention is to provide a centrifugal separator which utilizes an improved sealing concept.
  • a centrifugal separator for separating liquid and/or solid particulate contaminants entrained in a gas stream, comprising a stator configured as a housing, with the housing having a mixture inlet for a gas stream to be cleaned, a gas outlet for cleaned gas, and an outlet for contaminants separated from the gas; a rotor rotatably disposed in the housing; and a drive operably connected to said rotor to rotate the rotor within the housing; in which a basket is non-rotatably connected to the rotor, the basket comprising a substantially cylindrical part which extends in the direction of the mixture inlet and substantially parallel to the stator.
  • the objects are also achieved by providing a method of cleaning a contaminated gas stream comprising introducing a gas stream contaminated with liquid and/or solid particle contaminants through a mixture inlet into a centrifugal separator, the separator comprising a housing forming a stator and a rotor disposed concentrically inside the housing and operably connected to a drive, the rotor having a basket comprising a cylindrical part attached thereto to rotate therewith; the gas stream flowing into an annular space formed between the rotor and the basket; rotating the rotor and basket whereby the gas stream is caused to rotate and liquid and/or solid particle contaminants from the gas are deposited against the basket under the influence of centrifugal force; and discharging a cleaned gas stream from the centrifugal separator through a cleaned gas outlet and separated liquid and/or solid particle contaminants through a contaminant outlet; in which as a result of pressure differentials created in the gas stream, a partial stream of the cleaned gas stream flows countercurrently through
  • the centrifugal separator according to the invention for separating oil and/or solid particles entrained in an air stream has a mixture inlet for the air contaminated with oil and/or solid particles, an air outlet for the cleaned air and an oil outlet for the oil and/or solid particles.
  • the housing is designed as the stator for a rotor, which is concentrically arranged inside the housing.
  • the rotor is operably connected to a drive, which accelerates the rotor up to a maximum rotational speed of approximately 25,000 revolutions per minute.
  • a basket is non-rotatably connected to the rotor shaft. This basket comprises a substantially cylindrical part that extends in the direction of the mixture inlet and substantially parallel to the stator.
  • the gap formed between the outer wall of the basket and the inner wall of the housing can be described by the ratio of the distance between the rotor axis and the outer wall of the basket to the distance between the rotor axis and the inner wall of the housing. This ratio is preferably 0.7 to 0.98. Maintaining this gap width produces an effect that eliminates the need for contact sealing this gap.
  • the resulting flow conditions ensure that the rotation of the basket causes the oil and/or solid particle-laden gas stream likewise to rotate inside the basket, the gas stream to be freed from the entrained oil and/or solid particles under the influence of the centrifugal force, and a portion of this gas stream to flow against the main flow direction between the outer wall of the basket and the inner wall of the housing back toward the inlet opening. This is a result of the different pressure ratios, which are determined by the distance ratio.
  • the material of the centrifugal separator according to the invention may be selected freely, but care must be taken that it is sufficiently rigid to prevent the basket or the rotor from changing shape at the extremely high speeds.
  • the basket extends over nearly the entire length of the inner housing and thereby separates an inner annular space in the interior of the basket between the inside of the basket and the outside of the rotor shaft from an outer space between the outside of the basket and the inner wall of the housing.
  • the fullest possible coverage of the inner wall of the housing by the basket has a very positive influence on the course of the flow on the one hand and increases the separation efficiency on the other.
  • the inflowing gas contaminated with oil and/or solid particles is subject to a very strong rotation, such that extremely high centrifugal forces act on the entrained oil and/or solid particles, which can thus be more easily separated in the course of the flow and deposited on the inner wall of the basket.
  • a prerequisite is, of course, that the basket has a closed surface over its entire axial extent.
  • the inner basket surface can be smooth, patterned or structured. This must be adapted to the respective application.
  • guide elements in the interior of the basket to improve the separation of the oil and/or solid particle containing air.
  • These guide elements extend parallel to the rotor axis and preferably across the entire cylindrical area of the basket.
  • the inflowing gas mixture strikes the guide elements, which rotate together with the basket, is entrained by the guide elements and immediately starts to rotate strongly. This substantially improves the separation efficiency of the centrifugal separator.
  • the guide elements can be produced as an integral part of the basket or can subsequently be connected to the basket in a detachable or non-detachable manner. This could be accomplished, for example, by inserting, gluing or welding these guide elements or by some other type of connection.
  • the inwardly directed edges of the guide elements are straight and axially parallel. A zigzag or sinusoidal shape is also feasible, however, to produce certain effects in the gas stream.
  • the guide elements extend radially inwardly up to the rotor shaft and fit tightly against the rotor shaft to form a seal.
  • the interior of the basket is divided into various pie-shaped segments.
  • the guide elements are distributed symmetrically within the basket to avoid an imbalance, which could have a very negative effect at such high speeds.
  • the gas mixture flowing into the segments is subject to a further rotative force because of the guide elements, such that the gas mixture continues to move toward the cleaned air outlet in a tornado-like spiral about a virtual axis within the interior of the segments.
  • the cylindrical portion of the basket and the surface line of the housing form a 0° to 10° angle opening toward the air inlet.
  • This has a positive effect on the pressure difference between the upper part of the gap formed between the outer wall of the basket and the inner wall of the housing and the lower part of the gap formed between the basket and the housing.
  • the resulting greater pressure in the upper region of the gap ensures that the gas within the gap can flow only in the direction of the gas inlet.
  • the exact size of the angle should be adapted to the desired pressure ratios and the requirements, which depend on the application.
  • the cylindrical part of the basket has a radially inwardly protruding projection at its lower end, which faces the mixture inlet.
  • This projection again affects the pressure difference within the gap between the cleaned air outlet and the mixture inlet and, on the other hand, the turbulence of the gas mixture in the individual basket segments.
  • the length of the radially inwardly protruding projection again depends on the desired separation result. The positive effect is produced by the different diameter ratios between the inlet and the outlet of the basket. Ideally, this ratio ranges from 0.3 to 0.95.
  • the drive is hydraulic and uses oil, water or fuel.
  • the reaction effect of an exiting fluid, e.g., oil, water or fuel, or a turbine effect caused by the liquid striking the guide blades is used for this purpose.
  • the advantage is that a great many fluids are available in a motor vehicle, and the required pressure can be readily provided using existing or additional pumps.
  • exhaust gases can be used, which are present in any event in a motor vehicle during operation, or gases that are under pressure as a result of some type of compression.
  • intake air compressed by a turbocharger or, for example, by a separate compressor can be rerouted to build up the required pressure.
  • the reaction principle or a turbine effect could be used.
  • a third possibility is to use electrical energy for the drive, in which case the drive is configured as a fast running motor.
  • the drive is disposed within the rotor in the rotor shaft.
  • an electric motor is preferred, but the above-described variants with a pneumatic or hydraulic drive are also feasible if suitable bypasses are used.
  • the drive can also be disposed outside the housing and again be operably connected to the rotor shaft.
  • the advantage here is that no special seal is required between the interior of the housing and the drive, so that the drive and the centrifugal separator have two separate housings.
  • a fluid stream containing oil and/or solid particles is directed through a fluid mixture inlet into a centrifugal separator.
  • the centrifugal separator has a housing, which forms the stator, and a rotor disposed concentrically inside the housing, such that the rotor is operably connected to a drive.
  • the drive can be arranged outside the centrifugal separator and be operably connected to a rotor shaft or it can be integrated in the housing of the centrifugal separator or even integrated in the rotor shaft itself in the form of an electric drive.
  • a basket having a cylindrical part is non-rotatably connected to the rotor shaft.
  • the fluid stream to be cleaned flows through the fluid inlet into the housing and then through the lower basket opening into the basket. Because of its non-rotatable connection to the rotor shaft the basket has a high speed of rotation and thus also starts to rotate rapidly. Any oil and/or solid particles present in the fluid stream migrate outwardly under the influence of the centrifugal force and are deposited against the inner wall of the basket.
  • the cleaned fluid stream leaves the centrifugal separator through an air outlet, and the separated oil and/or solid particles are discharged through an oil outlet.
  • a portion of the cleaned fluid stream does not leave the centrifugal separator through the air outlet. Due to the pressure differentials in the fluid stream it flows through the gap between the outer wall of the basket and the inner wall of the housing against the main flow direction and is fed back into the main flow below the basket.
  • the pressure differentials which are a function of the geometry, and the resultant flow direction against the main flow direction in the gap between the basket and the housing ensure that no untreated fluid can bypass the centrifugal separator through the gap.
  • the basket is equipped with axially extending guide elements, which extend up to the rotor shaft and are distributed symmetrically around the circumference of the basket. These guide elements partition the basket into pie-shaped segments.
  • the fluid stream now flows through the mixture inlet into the respective segments of the basket, which rotates at a high speed.
  • This guidance of the fluid stream within the guide elements causes the corresponding partial fluid streams in each of the segments to develop their own rotating turbulent flow, such that the fluid mixture, as a result of the added rotational speeds of the partial fluid stream and the rotor, has an extremely high speed at certain points.
  • the weight of the oil and/or solid particles they are separated within the segments along the guide elements or along the inner wall of the basket under the influence of the centrifugal force. The cohesion forces among the fine oil and/or solid particles create a viscous oil film, which can be discharged through the oil outlet.
  • FIG. 1 is a longitudinal section of a centrifugal separator according to the invention.
  • FIG. 2 is a cross section of the cylindrical portion of the basket.
  • FIG. 1 shows a longitudinal section of a centrifugal separator 10 .
  • the centrifugal separator 10 has a housing comprising an upper housing part 11 and a lower housing part 12 , which are interconnected via a screwed connection 13 .
  • a rotor 14 is rotatably supported inside the housing by a radial bearing 15 in the upper housing part 11 and a radial bearing 16 in the lower housing part 12 .
  • the rotor 14 is operably connected to a drive 17 , which induces the rotational movement of the rotor 14 .
  • a fluid inlet 18 and an oil outlet 19 are arranged in the lower housing part 12 .
  • the fluid inlet 18 has a raised collar 29 to prevent any accumulated oil and/or solid particles from escaping through this fluid inlet 18 .
  • the oil outlet 19 is disposed at the lowest point of the lower housing part 12 . It is furthermore advantageous to arrange the oil outlet 19 radially as far from the center axis of the rotor 14 as possible because the oil and/or solid particles are also urged radially outwardly by the rotation of the rotor.
  • the fluid inlet 18 is axially parallel to the rotor 14 . This fluid inlet 18 can also be disposed at an angle or perpendicularly to the rotor 14 , particularly radially to the rotor 14 or tangentially to the housing 11 , 12 .
  • the rotor 14 comprises a rotor shaft 21 and has a basket 22 that is non-rotatably connected to the rotor shaft 21 .
  • the basket 22 which is open in the direction of the air outlet 20 and the fluid inlet 18 , comprises a cylindrical part 23 , which extends parallel to the rotor shaft 21 , and a radially inwardly protruding projection 24 at the lower end of the cylindrical part 23 .
  • the outer wall of the basket 22 forms an angle ⁇ with the inner wall of the housing 11 , 12 . This angle ⁇ ranges up to approximately 10° and opens in the direction of the fluid inlet 18 .
  • the cylindrical part 23 of the basket 22 separates a gap 25 between the inner wall of the housing 11 , 12 and the outer wall of the cylindrical part 23 , from a basket volume 26 , which is arranged between the rotor shaft 21 and the inner wall of the cylindrical part 23 of the basket 22 .
  • a basket volume 26 which is arranged between the rotor shaft 21 and the inner wall of the cylindrical part 23 of the basket 22 .
  • guide elements 27 which extend axially parallel to the rotor shaft 21 and—starting from the cylindrical part 23 —extend up to the rotor shaft 21 .
  • the basket volume 26 is divided into a plurality of segments.
  • the path of the gas stream is indicated by arrows 28 in FIG. 1 .
  • the gas stream may, for example, be a stream of crankcase vent gas that flows from the crankcase of an internal combustion engine 30 (illustrated only schematically) through a crankcase vent line 31 . It can be seen that the air flows through the fluid inlet 18 into the basket volume 26 of the cylindrical part 23 of the basket 22 and is caused to rotate in a spiral manner within the individual segments which are formed by the guide elements 27 which partition the basket volume 26 (See FIG. 2 ). Under the influence of the centrifugal force the oil and/or solid particles are deposited along the inner walls of the basket 22 and/or along the guide elements 27 .
  • the cleaned air leaves the basket volume 26 , with the major part of the cleaned air flowing out of the centrifugal separator 10 through the air outlet 20 . Due to a pressure differential, a partial stream of the cleaned air is forced into the gap 25 and flows against the main flow direction in the gap 25 toward the fluid inlet 18 . After leaving the gap 25 , this partial stream mixes with the incoming fluid mixture and again passes through the basket volume 26 . It is important to select the geometry of the rotor relative to the housing in such a way that a certain partial stream is always flowing against the main flow direction toward the gap 25 to prevent untreated fluid from flowing through the gap in the main flow direction. This is necessary to ensure the high separation efficiency of the centrifugal separator 10 .
  • FIG. 2 shows a cross section of the cylindrical part 23 of the basket 22 without the remaining components of the centrifugal separator 10 .
  • Components corresponding to those of FIG. 1 are identified by the same reference numerals.
  • FIG. 2 clearly shows the arrangement of the guide elements 27 across the circumference of the cylindrical part 23 of the basket 22 .
  • the guide elements 27 are integral with the basket 22 and preferably all have the same geometry.
  • the uniform distribution of the guide elements 27 around the circumference of the cylindrical part 23 of the basket 22 ensures that the basket 22 is properly centered.
  • the length of the guide elements 27 also has a positive effect on the centering if the guide elements extend from the basket 22 up to the rotor shaft 21 —as shown in this example.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Centrifugal Separators (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
US10/922,156 2003-08-23 2004-08-20 Centrifugal separator Abandoned US20050120685A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10338769.2 2003-08-23
DE10338769A DE10338769A1 (de) 2003-08-23 2003-08-23 Zentrifugalabscheider

Publications (1)

Publication Number Publication Date
US20050120685A1 true US20050120685A1 (en) 2005-06-09

Family

ID=34089177

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/922,156 Abandoned US20050120685A1 (en) 2003-08-23 2004-08-20 Centrifugal separator

Country Status (3)

Country Link
US (1) US20050120685A1 (fr)
EP (1) EP1510665B1 (fr)
DE (1) DE10338769A1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007097621A1 (fr) * 2006-02-23 2007-08-30 Romico Hold A.V.V. Dispositif et procede pour separer en fractions un melange de fluides en ecoulement
US20110180052A1 (en) * 2010-01-27 2011-07-28 Cummins Filtration Ip Inc. Closed Crankcase Ventilation System
US20130067873A1 (en) * 2010-04-09 2013-03-21 Alfa Laval Corporate Ab Centrifugal separator
US8893689B2 (en) 2010-01-27 2014-11-25 Cummins Filtration Ip, Inc. Crankcase ventilation self-cleaning coalescer with intermittent rotation
US8940068B2 (en) 2010-01-27 2015-01-27 Cummins Filtration Ip Inc. Magnetically driven rotating separator
US8974567B2 (en) 2010-01-27 2015-03-10 Cummins Filtration Ip Inc. Rotating coalescer with keyed drive
US9194265B2 (en) 2010-01-27 2015-11-24 Cummins Filtration Ip, Inc. Rotating separator with housing preventing separated liquid carryover
US9545591B2 (en) 2010-01-27 2017-01-17 Cummins Filtration Ip, Inc. Rotating separator with housing preventing separated liquid carryover
CN113153532A (zh) * 2021-03-25 2021-07-23 南京普国科技有限公司 一种离心式气水分离器
US20220025868A1 (en) * 2018-12-13 2022-01-27 Siemens Gamesa Renewable Energy A/S Device for draining humidity in wind turbines
CN113996449A (zh) * 2021-10-21 2022-02-01 山东畜牧兽医职业学院 一种孕马血清提纯用离心分离装置
US11351557B2 (en) 2016-11-14 2022-06-07 Alfdex Ab Housing for a centrifugal separator
US11446598B2 (en) 2017-06-20 2022-09-20 Cummins Filtration Ip, Inc. Axial flow centrifugal separator
WO2023046601A1 (fr) * 2021-09-21 2023-03-30 Fresh Works Ltd Unité de filtre avec conduit de distribution
US11654385B2 (en) 2015-09-24 2023-05-23 Cummins Filtration Ip, Inc Utilizing a mechanical seal between a filter media and an endcap of a rotating filter cartridge
US11988121B2 (en) 2020-01-28 2024-05-21 Cummins Filtration Inc. Electric motor integrated rotating crankcase ventilation filter assemblies
US12023619B2 (en) 2019-02-04 2024-07-02 Cummins Filtration Ip, Inc. Split flow axial crankcase separator
US12031463B1 (en) * 2023-05-31 2024-07-09 Deltahawk Engines, Inc. Separator for liquid and gas
US12071873B2 (en) 2018-05-24 2024-08-27 Cummins Filtration Ip, Inc. Anti-rotation features for crankcase ventilation filters

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008012400B4 (de) 2008-03-04 2014-05-08 Ford Global Technologies, Llc Ölnebelabscheider
DE202008016402U1 (de) * 2008-12-12 2010-04-22 Mann + Hummel Gmbh Zentrifugalabscheider
DE102016124098A1 (de) * 2016-12-12 2018-06-14 Hengst Se & Co. Kg Verfahren zum Schutz eines Rotationsseparators gegen Vereisung
CN110809938B (zh) * 2019-11-18 2021-06-22 湖南省中医药研究院 黄精种子快速萌发的装置及方法
EP3838376B1 (fr) * 2019-12-16 2022-09-21 Alfdex AB Séparateur centrifuge et machine comprenant un séparateur centrifuge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038611A (en) * 1957-05-08 1962-06-12 Ametek Inc Centrifugal separators
US3447290A (en) * 1967-09-18 1969-06-03 Frick Co Separator for disentrainment of material from a gaseous fluid stream
US6709477B1 (en) * 1999-06-30 2004-03-23 Volvo Lastvagnar Ab Oil separator for small particles
US6755896B2 (en) * 2002-06-24 2004-06-29 Alfa Laval Corporate Ab Method of cleaning crankcase gas and a gas cleaning separator
US7052529B2 (en) * 2000-12-01 2006-05-30 Alfa Laval Corporate Ab Method and a device for cleaning of crankcase gases coming from an internal combustion engine adapted for propelling a means of transportation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB585695A (en) 1940-04-30 1947-02-19 Air Equipement Improvements in or relating to means for separating oil and other liquid particles from air or other gas
GB1300749A (en) * 1969-06-10 1972-12-20 Hoccom Developments Ltd Centrifugal filter
FR2259996A1 (en) * 1974-01-31 1975-08-29 Frangeco A N F Gas turbine engine intake air cleaner - has hollow high speed rotary centrifuge drum with opening at ends
GB2128903B (en) * 1982-09-30 1986-04-16 British Nuclear Fuels Ltd Separating impurities from a gas
DE10300976A1 (de) * 2002-01-17 2003-07-31 Mann & Hummel Filter Zentrifuge zum Abscheiden von Partikeln aus einem Fluidstrom

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038611A (en) * 1957-05-08 1962-06-12 Ametek Inc Centrifugal separators
US3447290A (en) * 1967-09-18 1969-06-03 Frick Co Separator for disentrainment of material from a gaseous fluid stream
US6709477B1 (en) * 1999-06-30 2004-03-23 Volvo Lastvagnar Ab Oil separator for small particles
US7052529B2 (en) * 2000-12-01 2006-05-30 Alfa Laval Corporate Ab Method and a device for cleaning of crankcase gases coming from an internal combustion engine adapted for propelling a means of transportation
US6755896B2 (en) * 2002-06-24 2004-06-29 Alfa Laval Corporate Ab Method of cleaning crankcase gas and a gas cleaning separator

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8128732B2 (en) 2006-02-23 2012-03-06 Romico Hold A.V.V. Device and method for separating a flowing medium mixture into fractions
US20090301296A1 (en) * 2006-02-23 2009-12-10 Romico Hold A.V.V. Device and method for separating a flowing medium mixture into fractions
EA013066B1 (ru) * 2006-02-23 2010-02-26 Ромико Холд А.В.В. Способ разделения смеси текучих сред на фракции
AU2007218373B2 (en) * 2006-02-23 2011-03-17 Romico Hold A.V.V. Device and method for separating a flowing medium mixture into fractions
WO2007097621A1 (fr) * 2006-02-23 2007-08-30 Romico Hold A.V.V. Dispositif et procede pour separer en fractions un melange de fluides en ecoulement
US9574469B2 (en) 2010-01-27 2017-02-21 Cummins Filtration Ip, Inc Crankcase ventilation self-cleaning coalescer with intermittent rotation
US9885265B2 (en) 2010-01-27 2018-02-06 Cummins Filtration Ip Inc. Crankcase ventilation inside-out flow rotating coalescer
US10913023B2 (en) 2010-01-27 2021-02-09 Cummins Filtration Ip, Inc Rotating separator with housing preventing separated liquid carryover
US8794222B2 (en) * 2010-01-27 2014-08-05 Cummins Filtration Ip, Inc. Crankcase ventilation inside-out flow rotating coalescer
US8807097B2 (en) 2010-01-27 2014-08-19 Cummins Filtration Ip Inc. Closed crankcase ventilation system
US8893689B2 (en) 2010-01-27 2014-11-25 Cummins Filtration Ip, Inc. Crankcase ventilation self-cleaning coalescer with intermittent rotation
US8940068B2 (en) 2010-01-27 2015-01-27 Cummins Filtration Ip Inc. Magnetically driven rotating separator
US8974567B2 (en) 2010-01-27 2015-03-10 Cummins Filtration Ip Inc. Rotating coalescer with keyed drive
US9194265B2 (en) 2010-01-27 2015-11-24 Cummins Filtration Ip, Inc. Rotating separator with housing preventing separated liquid carryover
US20110180051A1 (en) * 2010-01-27 2011-07-28 Cummins Filtration Ip Inc. Crankcase Ventilation Inside-Out Flow Rotating Coalescer
US9545591B2 (en) 2010-01-27 2017-01-17 Cummins Filtration Ip, Inc. Rotating separator with housing preventing separated liquid carryover
US20110180052A1 (en) * 2010-01-27 2011-07-28 Cummins Filtration Ip Inc. Closed Crankcase Ventilation System
US9802146B2 (en) 2010-01-27 2017-10-31 Cummins Filtration Ip, Inc. Rotating separator with housing preventing separated liquid carryover
US20130067873A1 (en) * 2010-04-09 2013-03-21 Alfa Laval Corporate Ab Centrifugal separator
US9512755B2 (en) * 2010-04-09 2016-12-06 Alfa Laval Corporate Ab Centrifugal separator
US11654385B2 (en) 2015-09-24 2023-05-23 Cummins Filtration Ip, Inc Utilizing a mechanical seal between a filter media and an endcap of a rotating filter cartridge
US11351557B2 (en) 2016-11-14 2022-06-07 Alfdex Ab Housing for a centrifugal separator
US11446598B2 (en) 2017-06-20 2022-09-20 Cummins Filtration Ip, Inc. Axial flow centrifugal separator
US11951431B2 (en) 2017-06-20 2024-04-09 Cummins Filtration Ip, Inc. Axial flow centrifugal separator
US12071873B2 (en) 2018-05-24 2024-08-27 Cummins Filtration Ip, Inc. Anti-rotation features for crankcase ventilation filters
US20220025868A1 (en) * 2018-12-13 2022-01-27 Siemens Gamesa Renewable Energy A/S Device for draining humidity in wind turbines
US11629702B2 (en) * 2018-12-13 2023-04-18 Siemens Gamesa Renewable Energy A/S Device for draining humidity in wind turbines
US12023619B2 (en) 2019-02-04 2024-07-02 Cummins Filtration Ip, Inc. Split flow axial crankcase separator
US11988121B2 (en) 2020-01-28 2024-05-21 Cummins Filtration Inc. Electric motor integrated rotating crankcase ventilation filter assemblies
CN113153532A (zh) * 2021-03-25 2021-07-23 南京普国科技有限公司 一种离心式气水分离器
WO2023046601A1 (fr) * 2021-09-21 2023-03-30 Fresh Works Ltd Unité de filtre avec conduit de distribution
CN113996449A (zh) * 2021-10-21 2022-02-01 山东畜牧兽医职业学院 一种孕马血清提纯用离心分离装置
US12031463B1 (en) * 2023-05-31 2024-07-09 Deltahawk Engines, Inc. Separator for liquid and gas

Also Published As

Publication number Publication date
EP1510665A2 (fr) 2005-03-02
EP1510665A3 (fr) 2007-04-11
EP1510665B1 (fr) 2013-07-17
DE10338769A1 (de) 2005-03-17

Similar Documents

Publication Publication Date Title
US20050120685A1 (en) Centrifugal separator
US10543442B2 (en) Multiple stage rotating coalescer devices
US9670808B2 (en) Separator and method for separating liquid droplets from an aerosol
JP4991850B2 (ja) クランクケーシング内の換気のための装置
CN103501916B (zh) 一种包括离心分离器的装置
EP1439914B1 (fr) Appareil de nettoyage simultane d'un gaz et d'un liquide
JP5124448B2 (ja) 内燃機関の軸方向の中空軸内に組み込まれた遠心式のオイルミストセパレータ
US9919251B2 (en) Bladed drum for rotary separator system
CN107614083B (zh) 通过动态密封保持旋转聚结器正向再循环的系统和方法
RU2669631C1 (ru) Центробежный сепаратор
CN107921346A (zh) 具有定向的液体排放口和气体出口的旋转聚结元件
JP6380900B2 (ja) 分離器
EP1464797A3 (fr) Dispositif de separation de l'huile present dans le gaz du carter
WO2017145072A1 (fr) Dispositif de séparateur pour gaz de soufflage
WO2009050462A2 (fr) Séparateur centrifuge
US20240325955A1 (en) Split flow axial crankcase separator
US10995666B2 (en) Particle separators for turbomachines and method of operating the same
GB2337473A (en) A boundary layer separator
US6814768B2 (en) Oil separator
CN106795787B (zh) 用于对受污染的曲轴箱气体进行清洁的装置
CN106457101B (zh) 过滤气体/颗粒流
CN115450729B (zh) 一种离心式油气分离器和发动机系统
SE527718C2 (sv) Centrifugalseparator innefattande partikelavlänkningselement
RU2147345C1 (ru) Вентилятор
CN118686682A (zh) 一种油气分离装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: MANN & HUMMEL GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FISCHER, HELMUTH;BOLDA, JAN;REEL/FRAME:016262/0877

Effective date: 20041104

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION